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Оригинальный сообщение: LS Computer Systems ,


Your UPS may be putting out the right voltage or watts to power up the PC. It's possible that when the power came back on after the power outage, the relay / switch that switches the UPS from AC to Battery may have sparked when the power came back on. This would cause the relay / switch to burn and not permit proper connection. Sort of like a bad spark plug.

Try testing the outlets of the UPS with a proper tester and check for any voltage drops or spikes. Also try only plugging the PC into the UPS and connect the monitors to the wall outlet with another Surge Protector.


I would even test the power supply,  Voltage Diagram via the link....